Patents by Inventor Russell D. Kaufman

Russell D. Kaufman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5381870
    Abstract: A motorized skateboard includes a tubular frame having a first and second axle mounted in a parallel relationship about opposed ends of the frame, with a drive motor directed through a drive belt to a rear driven sprocket. An optional configuration of the invention utilizes the rear driven sprocket mounted to a constant velocity joint to permit rear steerage of the skateboard. The skateboard is arranged with pivoted front arms as required to provide for shock-absorbing suspension to the skateboard structure. The utilization of an independent front suspension is cooperative with a tapered rear roller support wheel structure to permit steerage of the organization. The independent front suspension includes frontal steering controlled by the front boot including a tie rod and spindle configuration.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: January 17, 1995
    Inventor: Russell D. Kaufman